Tool extension coupler



FIG. 1 is a front view of the tool extension coupler of the present invention;

FIG. 2 is a rear view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a right side view thereof, the left side view being a mirror image thereof;

FIG. 6 is a top front perspective view thereof;

FIG. 7 is a top rear perspective view thereof; and,

FIG. 8 is a bottom rear perspective view.

The broken lines in the drawings depict portions of the tool extension coupler that form no part of the claimed design. 

CLAIM The ornamental design for a tool extension coupler, as shown and described. 